A candle that is 12 inches tall is burning at a rate of 0.25 inches per hour. How tall is the candle after burning for 7 hours?
10.25 inches
100
Solve for x.
2x + 5 = 17
6
100
Which equation represents the line that passes through the point (-3, -8) and has a slope of 2?
A. 2x + y = 2
B. 2x + y = -2
C. 2x - y = -2
D. 2x - y = 2
D. 2x - y = 2
100
Jones plumbing charged Mrs. Garcia $115 to repair a leak. The materials cost $35 and the company charged $40 an hour. Write an equation to determine the number of hours worked?
115 = 40x + 35
200
What is the solution to the inequality below?
-4(x + 5) < 12
x > 8
200
The volume of air in a hot air balloon, y, compared to the time the air is heated, x, can be modeled by the function, f(x) = 25x + 750. What is the range of this function when the domain is {2, 4, 6, 8, 10}?
{800, 850, 900, 950, 1000}
200
Jacob charges $75 for a house call plus $50 per hour to repair a home computer. What would be the effect on the graph of this relationship if he charged $100 for the house call plus the $50 per hour?
A. The graph would have a steeper slope.
B. The graph would have a slope that is less steep.
C. The graph would shift vertically down 25 units.
D. The graph would shift vertically up 25 units.
D. The graph would shift vertically up for 25 units.
200
The height in cm, h(x), of a human female can be estimated by multiplying the length of the tibia in cm, x, by 2.90 and then adding 61.53 to the product. Write an equation that best represents this relationship.
h(x) = 2.90x + 61.53
300
Geraldo earns money by edging yards in his neighborhood. He spend $215 on new blades and maintenance for this edger and charges $15 for each lawn edged. What is the minimum number of yards Geraldo must edge to make a profit?
A. 13
B. 14
C. 15
D. 16
C. 15
300
Sabrina wants to buy a video game system and games for $1200. She can pay for the purchase in 20 months if she pays $200 now and $50 for each month. How will the number of payments be affected if she pays $300 now and $75 each month.
The number of payments will decrease to 12. She will make eight fewer monthly payments.
300
Mr. Lincoln packs jars of popcorn into a packing container. The empty packing container has a mass of 1.25 kg. The mass of each jar of popcorn is 0.80 kg. What is the total weight of the container with 12 jars of popcorn?
10.85 kg
300
What is the domain of the function y = 2x + 6, when the range is 0 < y < 4?
-3 < x < -1
300
What is the solution to the following system of equation?
3x + y = 15
-2x + 3y = 1
(4, 3)
400
Write a mathematical sentence that represents the solution for d in the equation 6e = ef + 3d?
d = 6e -ef / 3
400
What is 3x = 12 - 2y in standard form?
What is 2x = y + 3 in slope-intercept form
3x + 2y = 12
y = -2x + 3
400
A toy shaped like a cube has a side length of 5m^2n^6 units. Determine the volume in cubic units.
125m^6n^18
400
What are the zeroes or roots for the following equation?
x^2 + 4x - 12 = 0
{-6, 2}
400
The decrease in price of an MP3 player from the years 2000 to 2006 can be modeled using the function 44x + 2y = 450 where x represents the number of years since January 2000 and y represents the price of an MP3 player. Based on this function, what was the price of an MP3 player in January 2004?
$137.00
500
The junior class at Summerfield High sold a total of 375 tickets to their spring festival. The adult tickets sold for $7.50 and the student tickets sold for $4.50. They collected $2212.50 on the ticket sales. Which system of equations can be used to find how many adult tickets, a, and student tickets, s, the class sold?
A. a - s = 375
4.5s + 7.5a = 2212.50
B. 4.5s + 7.5a = 375
a + s = 2212.50
C. a = 375 - s
4.5s + 7.5a = 2212.50
D. a + s = 375
a + s = 2212.50
C
500
Write an equation passing through the points (3,2) and (-9,6).
y = -1/3x + 3
500
Which point lies in the solution set for the following set of inequalities?
x - y > 3
x + 2y < 6
A. (4, 2)
B. (-4, 4)
C. (4, -2)
D. (-2, 2)
C. (4, -2)
500
Sam has a total of 58 DVD's and CD's. If the number of CD's is two more than three times the number of DVDs how many CD's does he have?
44
500
An auditorium earned $25,000 in sold-out concert ticket sales. Tickets in the front costs $75 per seat and seats towards the back costs $50 per seat. The number of front seats is twice the number of back seats. How many seats are in the front section?